Option E
Since SO3 exists as crystalline solid and fumes in air.
Hence it is not a formation reaction.
Which of the following is not a formation reaction? O 1/2H2(g)+ 1/2 Br2l)HBr(g) O H2lg)+1/202(8)-H2O() Ca(s)+...
Which of the following is not a formation reaction? 1/2H2(g) + 1/2 Brale) > HBr(g) H2(g) + 1/2O2(g) → H20(4) Ca(s) + 1/2O2(g) → Cao(s) • 4Al(s) + 3/202(g) → Al2O3(s) H2O(l) +SO3(l) → H2SO4()
For which of the following equilibria does Kc = Kp? O a. HBr(g) = 1/2H2(g) + 1/2Br26) b. N26) + 3H2(g) = 2NH3(g) oc. CO(g) + 3H2(g) = CH4(g) + H20(g) od. CO(g) + H20(g) — CO2(g) + H2(g) e. Cao(s) + CO2(g) = CaCO3(s)
2. (10 pts) Given the following data Ca(s)2C(graphite)CaC2(s) -62.8 kJ OH635.5 Ca(s)1/202(g) CaO(s) kJ CaO(s)H20()- Ca(OH)2(aq) OH 653.1 kJ 2CO2(g)H2O(l OH1300 C2H2(g)5/202(g) kJ C(graphite) O2(g)CO2(g) H= -393.5 kJ calculateH for the reaction (show your work for full credit) CaC2(s)+ 2H20()- Ca(OH)2(aq) CH2(g)
Part A Determine the enthalpy for this reaction: Ca(OH)2(s)+CO2(g)→CaCO3(s)+H2O(l) Express your answer in kilojoules per mole to one decimal place. ΔHrxn∘= kJ/mol Part B Consider the reaction Ca(OH)2(s)→CaO(s)+H2O(l) with enthalpy of reaction ΔHrxn∘=65.2kJ/mol What is the enthalpy of formation of CaO(s)? Express your answer in kilojoules per mole to one decimal place. ± Enthalpy Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical reactions involve changes in enthalpy, ΔH, which can be measured...
2. Determine which of these reaction(s) are redox reaction. 6 Li2O(s) + P4010(g) → 4 Li3PO4(s Cao(s) + H2O(1) + Ca(OH)2(s) s(s) + 3 F2(g) → SF6(g) Zns(s) + 2 O2(g) → ZnSO4(s) SO2(g) + Cl2(g) → SO2Cl2(g) CuSO4.5H20(s) → CuSO4(s) + 5 H2O(g) SnCl4•6H2O(s) → SnOz(s) + 4 HCl(8) + 4 H20(8) NH4NO2(s) → N2(g) + 2 H2O(g) (NH4)2Cr207(s) → N2(g) + Cr2O3(s) + 4 H2O(g) 2 Na(s) + Cl2(g) → 2 NaCl(s) SO3(g) + Cao(s) > CaSO4(s) SO2(g)...
1. In which of the reactions below is H an enthalpy of formation? (a) S8(s) + 8O2(g) 8SO2(g) (b) CaO(s) + H2O(l) Ca(OH)2(s) (c) Cu(s) 1/2I2(s) CuI(s) (d) 1/2H2(g) + 1/2Cl2(g) + 2O2(g) HClO4(l) (e) both c and d are enthalpies of formation
c is the reaction: Ca(s) + 2 H20(1) Ca(OH)2(aq) + 2H2(8) -285.83 -1002.82 AH °(kJ/mol) S°(J/K) mol 41.59 69.95 -74.5 130.7 AH° = -431.16 AS° = 5.41 AG° = -432.77 enthalpy favored Oneither enthalpy and entropy favored O entropy favored O both enthalpy and entropy favored Submit
1. Determine: Ca(OH)2 (s) + H2SO4 (1) → CaSO4 (8) + 2 H20 (1) Given: CaO (s) + H2O (1) + Ca(OH)2 (s) CaO (s) + H2SO4 (1) + CaSO4 (s) +H2O (1) AH' = - 65.19 kJ AH = -271.67 kJ
Which of the following shows a formation reaction? States are omitted for simplicity. Assume all substances are in their standard states. OHCI + NaOH -NaCl + H20 2Mg + O2 + 2Mgo CaO + H2O -> Ca(OH)2 OS + 3F2 SF6
Using the equations Ca (s)2 O (g) Сао (s) 2 H2 (g) Determine the enthalpy for the reaction Са (s) + 2 H0 () — Са(ОН)2 (s) + H2 (9). CaO (s) AH° = -635 kJ/mol -64 kJ/mol H2O ()Ca(OH)2 (s) AH O2 (g)2 H2O (I) AH° = -572 kJ/mol kJ/mol 1 2 3 4 6 C 5 7 8 9 +/- 0 x 100 LO 11.01 g of MgSO4 is placed into 100.0 mL of water. The water's temperature...